pkgbase: Create a FreeBSD-console-tools package

And put in it:

• kbdcontrol
• vidcontrol
• moused
• kbdmap

Those aren't useful in a jail or for a modern desktop.
While here, split the devd.conf part into some new files.

Reviewed by: bapt
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D38321